1 -----------------------------------------------------------------------------
2 -- $Id: DriverState.hs,v 1.26 2001/02/01 11:47:53 simonmar Exp $
4 -- Settings for the driver
6 -- (c) The University of Glasgow 2000
8 -----------------------------------------------------------------------------
10 module DriverState where
12 #include "HsVersions.h"
21 #ifdef mingw32_TARGET_OS
22 import TmpFiles ( newTempName )
23 import Directory ( removeFile )
31 -----------------------------------------------------------------------------
32 -- non-configured things
34 cHaskell1Version = "5" -- i.e., Haskell 98
36 -----------------------------------------------------------------------------
37 -- Global compilation flags
39 -- location of compiler-related files
40 GLOBAL_VAR(v_TopDir, clibdir, String)
43 v_Hs_source_cpp_opts = global
44 [ "-D__HASKELL1__="++cHaskell1Version
45 , "-D__GLASGOW_HASKELL__="++cProjectVersionInt
47 , "-D__CONCURRENT_HASKELL__"
49 {-# NOINLINE v_Hs_source_cpp_opts #-}
51 -- Keep output from intermediate phases
52 GLOBAL_VAR(v_Keep_hi_diffs, False, Bool)
53 GLOBAL_VAR(v_Keep_hc_files, False, Bool)
54 GLOBAL_VAR(v_Keep_s_files, False, Bool)
55 GLOBAL_VAR(v_Keep_raw_s_files, False, Bool)
56 GLOBAL_VAR(v_Keep_tmp_files, False, Bool)
59 GLOBAL_VAR(v_Scale_sizes_by, 1.0, Double)
60 GLOBAL_VAR(v_Dry_run, False, Bool)
61 GLOBAL_VAR(v_Static, True, Bool)
62 GLOBAL_VAR(v_NoHsMain, False, Bool)
63 GLOBAL_VAR(v_Recomp, True, Bool)
64 GLOBAL_VAR(v_Collect_ghc_timing, False, Bool)
65 GLOBAL_VAR(v_Do_asm_mangling, True, Bool)
66 GLOBAL_VAR(v_Excess_precision, False, Bool)
68 -----------------------------------------------------------------------------
69 -- Splitting object files (for libraries)
71 GLOBAL_VAR(v_Split_object_files, False, Bool)
72 GLOBAL_VAR(v_Split_prefix, "", String)
73 GLOBAL_VAR(v_N_split_files, 0, Int)
76 can_split = prefixMatch "i386" cTARGETPLATFORM
77 || prefixMatch "alpha" cTARGETPLATFORM
78 || prefixMatch "hppa" cTARGETPLATFORM
79 || prefixMatch "m68k" cTARGETPLATFORM
80 || prefixMatch "mips" cTARGETPLATFORM
81 || prefixMatch "powerpc" cTARGETPLATFORM
82 || prefixMatch "rs6000" cTARGETPLATFORM
83 || prefixMatch "sparc" cTARGETPLATFORM
85 -----------------------------------------------------------------------------
86 -- Compiler output options
89 | cGhcWithNativeCodeGen == "YES" &&
90 (prefixMatch "i386" cTARGETPLATFORM ||
91 prefixMatch "sparc" cTARGETPLATFORM) = HscAsm
94 GLOBAL_VAR(v_Output_dir, Nothing, Maybe String)
95 GLOBAL_VAR(v_Object_suf, Nothing, Maybe String)
96 GLOBAL_VAR(v_Output_file, Nothing, Maybe String)
97 GLOBAL_VAR(v_Output_hi, Nothing, Maybe String)
99 GLOBAL_VAR(v_Ld_inputs, [], [String])
101 odir_ify :: String -> IO String
103 odir_opt <- readIORef v_Output_dir
106 Just d -> return (newdir d f)
108 osuf_ify :: String -> IO String
110 osuf_opt <- readIORef v_Object_suf
113 Just s -> return (newsuf s f)
115 -----------------------------------------------------------------------------
118 GLOBAL_VAR(v_Hi_on_stdout, False, Bool)
119 GLOBAL_VAR(v_Hi_suf, "hi", String)
121 -----------------------------------------------------------------------------
122 -- Warnings & sanity checking
124 -- Warning packages that are controlled by -W and -Wall. The 'standard'
125 -- warnings that you get all the time are
127 -- -fwarn-overlapping-patterns
128 -- -fwarn-missing-methods
129 -- -fwarn-missing-fields
130 -- -fwarn-deprecations
131 -- -fwarn-duplicate-exports
133 -- these are turned off by -Wnot.
136 standardWarnings = [ "-fwarn-overlapping-patterns"
137 , "-fwarn-missing-methods"
138 , "-fwarn-missing-fields"
139 , "-fwarn-deprecations"
140 , "-fwarn-duplicate-exports"
142 minusWOpts = standardWarnings ++
143 [ "-fwarn-unused-binds"
144 , "-fwarn-unused-matches"
145 , "-fwarn-incomplete-patterns"
146 , "-fwarn-unused-imports"
148 minusWallOpts = minusWOpts ++
149 [ "-fwarn-type-defaults"
150 , "-fwarn-name-shadowing"
151 , "-fwarn-missing-signatures"
152 , "-fwarn-hi-shadowing"
155 data WarningState = W_default | W_ | W_all | W_not
156 GLOBAL_VAR(v_Warning_opt, W_default, WarningState)
158 -----------------------------------------------------------------------------
159 -- Compiler optimisation options
161 GLOBAL_VAR(v_OptLevel, 0, Int)
163 setOptLevel :: String -> IO ()
164 setOptLevel "" = do { writeIORef v_OptLevel 1 }
165 setOptLevel "not" = writeIORef v_OptLevel 0
166 setOptLevel [c] | isDigit c = do
167 let level = ord c - ord '0'
168 writeIORef v_OptLevel level
169 setOptLevel s = unknownFlagErr ("-O"++s)
171 GLOBAL_VAR(v_minus_o2_for_C, False, Bool)
172 GLOBAL_VAR(v_MaxSimplifierIterations, 4, Int)
173 GLOBAL_VAR(v_StgStats, False, Bool)
174 GLOBAL_VAR(v_UsageSPInf, False, Bool) -- Off by default
175 GLOBAL_VAR(v_Strictness, True, Bool)
176 GLOBAL_VAR(v_CPR, True, Bool)
177 GLOBAL_VAR(v_CSE, True, Bool)
179 -- these are the static flags you get without -O.
182 "-fignore-interface-pragmas",
183 "-fomit-interface-pragmas",
187 -- these are the static flags you get when -O is on.
191 "-fdo-eta-reduction",
192 "-fdo-lambda-eta-expansion",
199 hsc_minusO2_flags = hsc_minusO_flags -- for now
201 getStaticOptimisationFlags 0 = hsc_minusNoO_flags
202 getStaticOptimisationFlags 1 = hsc_minusO_flags
203 getStaticOptimisationFlags n = hsc_minusO2_flags
205 buildCoreToDo :: IO [CoreToDo]
207 opt_level <- readIORef v_OptLevel
208 max_iter <- readIORef v_MaxSimplifierIterations
209 usageSP <- readIORef v_UsageSPInf
210 strictness <- readIORef v_Strictness
211 cpr <- readIORef v_CPR
212 cse <- readIORef v_CSE
214 if opt_level == 0 then return
216 CoreDoSimplify (isAmongSimpl [
217 MaxSimplifierIterations max_iter
221 else {- opt_level >= 1 -} return [
223 -- initial simplify: mk specialiser happy: minimum effort please
224 CoreDoSimplify (isAmongSimpl [
226 -- Don't inline anything till full laziness has bitten
227 -- In particular, inlining wrappers inhibits floating
228 -- e.g. ...(case f x of ...)...
229 -- ==> ...(case (case x of I# x# -> fw x#) of ...)...
230 -- ==> ...(case x of I# x# -> case fw x# of ...)...
231 -- and now the redex (f x) isn't floatable any more
233 -- Similarly, don't apply any rules until after full
234 -- laziness. Notably, list fusion can prevent floating.
236 -- Don't do case-of-case transformations.
237 -- This makes full laziness work better
238 MaxSimplifierIterations max_iter
241 -- Specialisation is best done before full laziness
242 -- so that overloaded functions have all their dictionary lambdas manifest
245 CoreDoFloatOutwards False{-not full-},
248 CoreDoSimplify (isAmongSimpl [
250 -- Want to run with inline phase 1 after the specialiser to give
251 -- maximum chance for fusion to work before we inline build/augment
252 -- in phase 2. This made a difference in 'ansi' where an
253 -- overloaded function wasn't inlined till too late.
254 MaxSimplifierIterations max_iter
257 -- infer usage information here in case we need it later.
258 -- (add more of these where you need them --KSW 1999-04)
259 if usageSP then CoreDoUSPInf else CoreDoNothing,
261 CoreDoSimplify (isAmongSimpl [
262 -- Need inline-phase2 here so that build/augment get
263 -- inlined. I found that spectral/hartel/genfft lost some useful
264 -- strictness in the function sumcode' if augment is not inlined
265 -- before strictness analysis runs
267 MaxSimplifierIterations max_iter
270 CoreDoSimplify (isAmongSimpl [
271 MaxSimplifierIterations 2
272 -- No -finline-phase: allow all Ids to be inlined now
273 -- This gets foldr inlined before strictness analysis
276 if strictness then CoreDoStrictness else CoreDoNothing,
277 if cpr then CoreDoCPResult else CoreDoNothing,
281 CoreDoSimplify (isAmongSimpl [
282 MaxSimplifierIterations max_iter
283 -- No -finline-phase: allow all Ids to be inlined now
286 CoreDoFloatOutwards False{-not full-},
287 -- nofib/spectral/hartel/wang doubles in speed if you
288 -- do full laziness late in the day. It only happens
289 -- after fusion and other stuff, so the early pass doesn't
290 -- catch it. For the record, the redex is
291 -- f_el22 (f_el21 r_midblock)
294 -- Leave out lambda lifting for now
295 -- "-fsimplify", -- Tidy up results of full laziness
297 -- "-fmax-simplifier-iterations2",
299 -- "-ffloat-outwards-full",
301 -- We want CSE to follow the final full-laziness pass, because it may
302 -- succeed in commoning up things floated out by full laziness.
303 -- CSE used to rely on the no-shadowing invariant, but it doesn't any more
305 if cse then CoreCSE else CoreDoNothing,
309 -- Case-liberation for -O2. This should be after
310 -- strictness analysis and the simplification which follows it.
312 if opt_level >= 2 then
317 -- Final clean-up simplification:
318 CoreDoSimplify (isAmongSimpl [
319 MaxSimplifierIterations max_iter
320 -- No -finline-phase: allow all Ids to be inlined now
324 buildStgToDo :: IO [ StgToDo ]
326 stg_stats <- readIORef v_StgStats
327 let flags1 | stg_stats = [ D_stg_stats ]
331 ways_ <- readIORef v_Ways
332 let flags2 | WayProf `elem` ways_ = StgDoMassageForProfiling : flags1
337 -----------------------------------------------------------------------------
340 split_marker = ':' -- not configurable (ToDo)
342 v_Import_paths, v_Include_paths, v_Library_paths :: IORef [String]
343 GLOBAL_VAR(v_Import_paths, ["."], [String])
344 GLOBAL_VAR(v_Include_paths, ["."], [String])
345 GLOBAL_VAR(v_Library_paths, [], [String])
347 GLOBAL_VAR(v_Cmdline_libraries, [], [String])
349 addToDirList :: IORef [String] -> String -> IO ()
350 addToDirList ref path
351 = do paths <- readIORef ref
352 writeIORef ref (paths ++ split split_marker path)
354 -----------------------------------------------------------------------------
357 GLOBAL_VAR(v_Path_package_config, error "path_package_config", String)
359 -- package list is maintained in dependency order
360 GLOBAL_VAR(v_Packages, ("std":"rts":"gmp":[]), [String])
362 addPackage :: String -> IO ()
364 = do pkg_details <- readIORef v_Package_details
365 case lookupPkg package pkg_details of
366 Nothing -> throwDyn (OtherError ("unknown package name: " ++ package))
368 ps <- readIORef v_Packages
369 unless (package `elem` ps) $ do
370 mapM_ addPackage (package_deps details)
371 ps <- readIORef v_Packages
372 writeIORef v_Packages (package:ps)
374 getPackageImportPath :: IO [String]
375 getPackageImportPath = do
377 return (nub (concat (map import_dirs ps)))
379 getPackageIncludePath :: IO [String]
380 getPackageIncludePath = do
382 return (nub (filter (not.null) (concatMap include_dirs ps)))
384 -- includes are in reverse dependency order (i.e. rts first)
385 getPackageCIncludes :: IO [String]
386 getPackageCIncludes = do
388 return (reverse (nub (filter (not.null) (concatMap c_includes ps))))
390 getPackageLibraryPath :: IO [String]
391 getPackageLibraryPath = do
393 return (nub (concat (map library_dirs ps)))
395 getPackageLibraries :: IO [String]
396 getPackageLibraries = do
398 tag <- readIORef v_Build_tag
399 let suffix = if null tag then "" else '_':tag
401 map (\p -> map (++suffix) (hs_libraries p) ++ extra_libraries p) ps
404 getPackageExtraGhcOpts :: IO [String]
405 getPackageExtraGhcOpts = do
407 return (concatMap extra_ghc_opts ps)
409 getPackageExtraCcOpts :: IO [String]
410 getPackageExtraCcOpts = do
412 return (concatMap extra_cc_opts ps)
414 getPackageExtraLdOpts :: IO [String]
415 getPackageExtraLdOpts = do
417 return (concatMap extra_ld_opts ps)
419 getPackageInfo :: IO [Package]
421 ps <- readIORef v_Packages
424 getPackageDetails :: [String] -> IO [Package]
425 getPackageDetails ps = do
426 pkg_details <- readIORef v_Package_details
427 return [ pkg | p <- ps, Just pkg <- [ lookupPkg p pkg_details ] ]
429 GLOBAL_VAR(v_Package_details, (error "package_details"), [Package])
431 lookupPkg :: String -> [Package] -> Maybe Package
433 = case [p | p <- ps, name p == nm] of
436 -----------------------------------------------------------------------------
439 -- The central concept of a "way" is that all objects in a given
440 -- program must be compiled in the same "way". Certain options change
441 -- parameters of the virtual machine, eg. profiling adds an extra word
442 -- to the object header, so profiling objects cannot be linked with
443 -- non-profiling objects.
445 -- After parsing the command-line options, we determine which "way" we
446 -- are building - this might be a combination way, eg. profiling+ticky-ticky.
448 -- We then find the "build-tag" associated with this way, and this
449 -- becomes the suffix used to find .hi files and libraries used in
452 GLOBAL_VAR(v_Build_tag, "", String)
481 GLOBAL_VAR(v_Ways, [] ,[WayName])
483 allowed_combination way = way `elem` combs
484 where -- the sub-lists must be ordered according to WayName,
485 -- because findBuildTag sorts them
486 combs = [ [WayProf,WayUnreg], [WayProf,WaySMP] ]
488 findBuildTag :: IO [String] -- new options
490 way_names <- readIORef v_Ways
491 case sort way_names of
492 [] -> do writeIORef v_Build_tag ""
495 [w] -> do let details = lkupWay w
496 writeIORef v_Build_tag (wayTag details)
497 return (wayOpts details)
499 ws -> if not (allowed_combination ws)
500 then throwDyn (OtherError $
501 "combination not supported: " ++
502 foldr1 (\a b -> a ++ '/':b)
503 (map (wayName . lkupWay) ws))
504 else let stuff = map lkupWay ws
505 tag = concat (map wayTag stuff)
506 flags = map wayOpts stuff
508 writeIORef v_Build_tag tag
509 return (concat flags)
512 case lookup w way_details of
513 Nothing -> error "findBuildTag"
514 Just details -> details
522 way_details :: [ (WayName, Way) ]
524 [ (WayProf, Way "p" "Profiling"
530 (WayTicky, Way "t" "Ticky-ticky Profiling"
533 , "-optc-DTICKY_TICKY"
536 (WayUnreg, Way "u" "Unregisterised"
539 (WayPar, Way "mp" "Parallel"
541 , "-D__PARALLEL_HASKELL__"
543 , "-package concurrent"
546 (WayGran, Way "mg" "Gransim"
550 , "-package concurrent"
553 (WaySMP, Way "s" "SMP"
560 (WayUser_a, Way "a" "User way 'a'" ["$WAY_a_REAL_OPTS"]),
561 (WayUser_b, Way "b" "User way 'b'" ["$WAY_b_REAL_OPTS"]),
562 (WayUser_c, Way "c" "User way 'c'" ["$WAY_c_REAL_OPTS"]),
563 (WayUser_d, Way "d" "User way 'd'" ["$WAY_d_REAL_OPTS"]),
564 (WayUser_e, Way "e" "User way 'e'" ["$WAY_e_REAL_OPTS"]),
565 (WayUser_f, Way "f" "User way 'f'" ["$WAY_f_REAL_OPTS"]),
566 (WayUser_g, Way "g" "User way 'g'" ["$WAY_g_REAL_OPTS"]),
567 (WayUser_h, Way "h" "User way 'h'" ["$WAY_h_REAL_OPTS"]),
568 (WayUser_i, Way "i" "User way 'i'" ["$WAY_i_REAL_OPTS"]),
569 (WayUser_j, Way "j" "User way 'j'" ["$WAY_j_REAL_OPTS"]),
570 (WayUser_k, Way "k" "User way 'k'" ["$WAY_k_REAL_OPTS"]),
571 (WayUser_l, Way "l" "User way 'l'" ["$WAY_l_REAL_OPTS"]),
572 (WayUser_m, Way "m" "User way 'm'" ["$WAY_m_REAL_OPTS"]),
573 (WayUser_n, Way "n" "User way 'n'" ["$WAY_n_REAL_OPTS"]),
574 (WayUser_o, Way "o" "User way 'o'" ["$WAY_o_REAL_OPTS"]),
575 (WayUser_A, Way "A" "User way 'A'" ["$WAY_A_REAL_OPTS"]),
576 (WayUser_B, Way "B" "User way 'B'" ["$WAY_B_REAL_OPTS"])
581 , "-optc-DUSE_MINIINTERPRETER"
582 , "-fno-asm-mangling"
586 -----------------------------------------------------------------------------
587 -- Programs for particular phases
589 GLOBAL_VAR(v_Pgm_L, error "pgm_L", String)
590 GLOBAL_VAR(v_Pgm_P, cRAWCPP, String)
591 GLOBAL_VAR(v_Pgm_c, cGCC, String)
592 GLOBAL_VAR(v_Pgm_m, error "pgm_m", String)
593 GLOBAL_VAR(v_Pgm_s, error "pgm_s", String)
594 GLOBAL_VAR(v_Pgm_a, cGCC, String)
595 GLOBAL_VAR(v_Pgm_l, cGCC, String)
596 GLOBAL_VAR(v_Pgm_dll, cMkDLL, String)
598 GLOBAL_VAR(v_Opt_dep, [], [String])
599 GLOBAL_VAR(v_Anti_opt_C, [], [String])
600 GLOBAL_VAR(v_Opt_C, [], [String])
601 GLOBAL_VAR(v_Opt_l, [], [String])
602 GLOBAL_VAR(v_Opt_dll, [], [String])
604 getStaticOpts :: IORef [String] -> IO [String]
605 getStaticOpts ref = readIORef ref >>= return . reverse